Can anyone help me with skin issue?

I am writing because I have a skin issue that is rapidly spreading up my arm, and I am very concerned. I have been unable to get an appointment with a dermatologist until next month. The condition is getting worse, and I am worried about what it might be. I am hoping to get guidance on what to do, as I am quite scared about the situation.
Can anyone help me with skin issue?
Can anyone help me with skin issue?
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